The Tusi couple (also known as Tusi's mechanism[1][2][3]) is a mathematical device in which a small circle rotates inside a larger circle twice the diameter of the smaller circle. Rotations of …

2025年1月20日 · The Tusi couple is a 2-cusped hypocycloid obtained by rolling a circle of radius a inside a circle of radius 2a. The result is a line segment (Steinhaus 1999, p. 145; Kanas 2003), …

2020年6月18日 · There is a lot more you can explore – start by looking into the Tusi Couple – which is what we have just drawn – and the more general case the hypocycloid.

The Tusi couple (also known as Tusi's mechanism [1] [2] [3]) is a mathematical device in which a small circle rotates inside a larger circle twice the diameter of the smaller circle. Rotations of …

In the 1260's, Al Tusi, working in a magnificent observatory built for him by the Mongols in northern Iran, created a circular model, a combination of circular motions, that gave the …

Tusi Couple By Spencer Connor This mesmerizing arrangement producing purely sinusoidal motion is a specialized case of a hypocycloid, which generally don’t produce motions anything …

The term Tusi couple is modern and was introduced by science historian Edward Stewart Kennedy (1912--2009) in 1966. Nicolaus Copernicus (1473--1543) made use of the Tusi …

2018年7月9日 · It has been known for about 50 years that Copernicus was likely aware about the mathematical theorem called “the Tusi couple” after a medieval Persian astronomer Nasir al …

4 天之前 · This result was noted by the Persian astronomer and mathematician Nasir Al-Din al-Tusi (1201-1274), and is sometimes known as a "Tusi couple" is his honor (Sotiroudis and …

The 2-cusped hypocycloid called Tusi couple was first described by the 13th-century Persian astronomer and mathematician Nasir al-Din al-Tusi in Tahrir al-Majisti (Commentary on the …